Electrocatalytic Oxidation and Sensitive Detection of Cysteine on a Lead Ruthenate Pyrochlore Modified Electrode

2001 ◽  
Vol 73 (6) ◽  
pp. 1169-1175 ◽  
Author(s):  
Jyh-Myng Zen ◽  
Annamalai Senthil Kumar ◽  
Jyh-Cheng Chen
Keyword(s):  
Modified Electrode ◽  
Electrocatalytic Oxidation ◽  
Sensitive Detection

scholarly journals Electrocatalytic determination of captopril using a carbon paste electrode modified with N-(ferrocenyl methylidene) fluorene-2-amine and graphene/ZnO nanocomposite

2019 ◽  
Vol 84 (2) ◽  
pp. 175-185 ◽  
Author(s):  
Mohadeseh Safaei ◽  
Hadi Beitollahi ◽  
Masoud Shishehbore ◽  
Somayeh Tajik ◽  
Rahman Hosseinzadeh
Keyword(s):  
Modified Electrode ◽  
Carbon Paste Electrode ◽  
Electrocatalytic Oxidation ◽  
Differential Pulse ◽  
Diagnostic Techniques ◽  
Carbon Paste ◽  
Pulse Voltammetry ◽  
Electrocatalytic Determination ◽  
Paste Electrode

A carbon paste electrode (CPE) was modified with N-(ferrocenylmethylidene) fluorene-2-amine and graphene/ZnO nanocomposite. The electrooxidation of captopril (CAP) at the surface of the modified electrode was studied using electrochemical approaches. The electrochemical study of the modified electrode, as well as its efficiency for the electrocatalytic oxidation of captopril, is described. The electrode was used to study the electrocatalytic oxidation of captopril, by cyclic voltammetry (CV), chronoamperometry (CHA) and differential pulse voltammetry (DPV) as diagnostic techniques. It has been found that the oxidation of captopril at the surface of modified electrode occurs at a potential of about 340 mV less positive than that of an unmodified CPE. DPV of captopril at the electrochemical sensor exhibited two linear dynamic ranges (0.1?100.0 and 100.0?800.0 ?M) with a detection limit (3?) of 0.05 ?M.

scholarly journals Highly sensitive detection of hexavalent chromium utilizing a sol-gel/carbon nanotube modified electrode

2016 ◽  
Vol 781 ◽  
pp. 120-125 ◽  
Author(s):  
Samuel M. Rosolina ◽  
Stefanie A. Bragg ◽  
Ruizhuo Ouyang ◽  
James Q. Chambers ◽  
Zi-Ling Xue
Keyword(s):  
Carbon Nanotube ◽  
Hexavalent Chromium ◽  
Modified Electrode ◽  
Sol Gel ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection
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